AVM Awareness

What is Arteriovenous Malformation?

Arteriovenous Malformation or AVM is one of the rarest vascular anomalies in the world. AVMs are tangles of abnormally connected veins and arteries found primarily in the brain, head, neck and spine. Without the decelerating effect of capillaries, blood flows from the arteries with intense pressure, excessively and rapidly entering the veins. Because veins are not designed to take this amount of pressure, the vessels expand, invading and destroying any tissues or organs in the way. If left untreated, AVMs cause a range of health problems including facial disfigurement and paralysis, seizures, external and internal bleeding, blood clots and, in the most severe cases, death.